Author:  Антон Карабанов  Time limit:  1 sec  
Input file:  Standard input  Memory limit:  512 Mb  
Output file:  Standard output 
Artem made up three integers and told Eugene the average value of every pair of them. Eugene easily restored original integers. Now you try to do the same!
Input contains three numbers: x, y and z. Numbers are either integers or have fractional part of exactly 0.5. At least one number is not zero.
Output original integers in nondescending order (input data are such that the original numbers will turn out to be integer).
− 10^{8} ≤ x, y, z ≤ 10^{8}
In the sample x = 1.5, y = 2 and z = 3.5. These are pairwise averages for a = 0, b = 3 and c = 4. Indeed:
a + b2 = 0 + 32 = 1.5 = x;
a + c2 = 0 + 42 = 2 = y;
b + c2 = 3 + 42 = 3.5 = z.
No.  Standard input  Standard output 

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